Physics, 30.06.2019 11:10 cschellfamily
Discussion topican enormous amount of electricity is created atpower-generating stations and sent across thecountry through wires that carry high voltages. appliances, power lines, airport and militaryradars, substations, transformers, computers, andother equipment that carries or uses electricity allgenerate electromagnetic fields. many questions have been raised about howelectromagnetic fields affect our bodies. do theypose a public health risk? perform an internetsearch to find information about the effects ofelectromagnetic fields on public health. then, discuss the pros and cons of using equipment thatproduces an electromagnetic field.
Answers: 2
Physics, 22.06.2019 02:00, arinegrete2003
What is created when solids, liquids, an gases mix with one another
Answers: 1
Physics, 22.06.2019 10:50, afonseca73
Asheet of steel 1.5 mm thick has nitrogen atmospheres on both sides at 1200oc and is permitted to achieve a steady-state diffusion condition. the diffusion coefficient for nitrogen in steel at this temperature is 6 x 10- 11 m2 /s, and the diffusion flux is found to be 1.2 x 10-7 kg/m2 -s. also, it is known that the concentration of nitrogen in the steel at the high-pressure surface is 4 kg/m3 . how far into the sheet from this high-pressure side will the concentration be 2.0 kg/m3 ? assume a linear concentration profile.
Answers: 3
Physics, 22.06.2019 14:40, allenpaietonp9v8sv
What is the orbital period of a spacecraft in a low orbit near the surface of mars? the radius of mars is 3.4×106m.
Answers: 2
Discussion topican enormous amount of electricity is created atpower-generating stations and sent ac...
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